ライフサイエンスコーパス: xantphos

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1 d phosphido dimers form by P-C activation of xantphos (4,5-bis(diphenylphosphino)-9,9-dimethylxanthen

2 POP = bis[2-(diphenylphosphino)phenyl]ether; xantphos = 4,5-bis(diphenylphosphino)-9,9-dimethylxanthe

3 With use of Xantphos 5, the catalytic amination of a variety of func

4 ded AgOTf) or [Pd(CH(3)CN)(4)](BF(4))(2) and Xantphos (9,9-dimethyl-4,5-bis(diphenylphosphino)xanthen

5 , Cl(2)Pd(PPh(3))(2)/2 MeLi, and Pd(2)dba(3)/xantphos allow for phosphorus-carbon bond formation inst

6 phines such as dbdocphos, dppp, DPEphos, and Xantphos are screened, of which Ru1 and Ru4 are found to

7 ves can be efficiently performed by applying Xantphos as a ligand of the catalyst system.

8 d to moderate yields in the presence of only xantphos as an additive.

9 Using Xantphos as the ligand, beta,gamma-unsaturated esters ar

10 on of aryl bromides has been developed using Xantphos as the ligand.

11 bis(diphenylphosphino)-9,9-dimethylxanthene (Xantphos) as a ligand for palladium is essential for all

12 {Rh(xantphos)}-based phosphido dimers form by P-C activation

13 bonylation process is aided by the action of xantphos-based ligands and is important in securing good

14 A Rhodium (Xantphos)(benzoate) catalyst activates aldehyde carbon-h

15 The Pd-xantphos catalyst affords high yields of alpha-sulfinyl

16 A simple Pd(OAc)2/Xantphos catalyst system affects this new reaction and i

17 ed with up to 98% yield by means of Pd(OAc)2/Xantphos catalyst system.

18 ute to succinimide derivatives comprising Pd(xantphos)Cl2-catalyzed aminocarbonylation of alkynes wit

19 diphenylphosphino)-9,9-dimethylxanthene) and Xantphos(Cy) (4,5-bis(dicyclohexylphosphino)-9,9-dimethy

20 ts [Ru(Xantphos(Ph))(PhCO2)(Cl)] (1) and [Ru(Xantphos(Cy))(PhCO2)(Cl)] (2), the synthesis, characteri

21 dmp)]tfpb, [Cu(xantphos)(dipp)]tfpb, and [Cu(xantphos)(dipp)]pftpb, (where POP = bis[2-(diphenylphosp

22 POP)(dmp)]tfpb, [Cu(xantphos)(dmp)]tfpb, [Cu(xantphos)(dipp)]tfpb, and [Cu(xantphos)(dipp)]pftpb, (wh

23 (51 ms for the 95% return constant) for [Cu(xantphos)(dmp)]tfpb are significantly better than those

24 copper(I) compounds [Cu(POP)(dmp)]tfpb, [Cu(xantphos)(dmp)]tfpb, [Cu(xantphos)(dipp)]tfpb, and [Cu(x

25 th amidine 9a catalyzed by Pd(2)(dba)(3) and Xantphos, followed by cyclization effected with HBTU and

26 dropolymerization of H3B.NMeH2 using the [Rh(Xantphos)](+) fragment is reported.

27 bis(benzonitrile) palladium(II) chloride and Xantphos furnished the highest yields of the desired com

28 evealing an unusual cis-coordination mode of Xantphos in this palladium-acyl complex.

29 The catalytic system Pd(2)dba(3)/xantphos is crucial to avoid or minimize the competitive

30 talyst derived from copper tert-butoxide and Xantphos ligand.

31 reaction conditions through the use of Pd-G3 XantPhos palladacycle precatalyst.

32 oughput experimentation (HTE) and led to the Xantphos/palladium hit, which proved to be a general cat

33 oxidative addition of 4-bromobenzonitrile, (Xantphos)Pd(4-cyanophenyl)(Br) (II), was prepared in one

34 nyl)(Br) (II), was prepared in one step from Xantphos, Pd(2)(dba)(3), and the aryl bromide.

35 coupling of aryl halides and amides using a Xantphos/Pd catalyst is described.

36 on of aryl bromides utilizing the air-stable XantPhos-PdCl2 precatalyst.

37 ory (DFT) computations using novel ruthenium Xantphos(Ph) (4,5-bis(diphenylphosphino)-9,9-dimethylxan

38 hino)-9,9-dimethylxanthene) precatalysts [Ru(Xantphos(Ph))(PhCO2)(Cl)] (1) and [Ru(Xantphos(Cy))(PhCO

39 ate in the productive reaction as the Pd(II)/xantphos precursor.

40 nucleophilic attack on complexes ligated by Xantphos was faster than on complexes bearing ligands wi

41 amides when the reaction was catalyzed by Pd-xantphos, while Pd(PPh(3))(4) catalyst afforded cyclic c

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